Not paying rent could be viewed as a form of abuse. And as stated earler we have no way of knowing if your behavior was the reason he moved out. It does seem strange that he would leave his home where one family member is living to move into the home of another family member. I hope you have the money for the months you didn't pay rent. If you don't it will likely be viewed as abuse. If as you say, you were withholding the rent because you wanted a lease, you can prove that by having the rent. Although I'm sure you will have to move.

